Finding the Fourth Proportional to 8,855.30, 12,215.83 and 5,500.10

Step by Step Solution

1. Step 1: Write the proportion equation
   8,855.30 : 12,215.83 = 5,500.10 : x
2. Step 2: Convert to fraction form
   8,855.30/12,215.83 = 5,500.10/x
3. Step 3: Cross multiply
   8,855.30x = 12,215.83 × 5,500.10
4. Step 4: Simplify right side
   8,855.30x = 67,188,286.58
5. Step 5: Solve for x
   x = 67,188,286.58/8,855.30
6. Step 6: Final answer
   x = 7,587.35